Attachment adapter



FIG. 1 is a front, top and left side perspective view of an attachmentadapter showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a left side elevational view thereof;

FIG. 8 is a front, top and left side perspective view showing a statewhere the attachment adapter is opened; and,

FIG. 9 is a reference perspective view showing a usage state of theattachment adapter (the figure shows a state where a cylindrical-shapedinterchangeable lens digital camera as one example shown by the brokenlines and a smartphone as one example shown by the broken lines areconnected to each other by using the attachment adapter shown by thesolid lines).

CLAIM The ornamental design for an attachment adapter, as shown.